January 25, 2015, 7am PST
So long 2007. Hello 2014. According to new DOT data, peak driving is no longer in the rear view mirror but ahead of us thanks to cheap gas getting even cheaper, the rebound effect, an improved economy, and warmer weather.
February 26, 2013, 6am PST
In this op-ed, MIT climate research scientist Valerie J. Karplus contrasts raising CAFE standards with gas taxes. While the former may be more politically expedient, she shows how it is less effective in reducing emissions, oil reliance and driving.
June 14, 2011, 1pm PDT
Despite having the world's most energy efficient, least polluting auto fleet, greenhouse gas emissions from the transportation sector continue to rise in Sweden.